Black Flag Fogging Insecticide is specifically designed to be used with Black Flag, Burgess, Cutter, and Repel branded thermal foggers. The secret is in the microscopic particles the fogger produces - up to 7 times finer than mist! The fog floats and penetrates deep into landscaped areas where mosquitoes hide - killing mosquitoes on contact and creating a 'mosquito-free' zone for up to 6 hours. In about 5 minutes, the fog is gone so you can start enjoying the outdoors again. Takes an average of 10 minutes to treat a 5, 000 square foot yard. And the insecticide fog is nearly odorless! Use before backyard picnics, barbecues, outdoor parties and special events. This is the same effective system used by professionals to kill mosquitoes. For outdoor residential use only.